NC0036269_authorization to construct_20130503

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CH2M HILL
CH2MHILL
May 3, 2013
Mr. Seth Robertson
NC DENR Division of Water Quality
Infrastructure Finance Section
1633 Mail Service Center
Raleigh, NC 27699-1633
RECEVEV
MAY 0 6 2013
Infrastructure Fi *nc6 Secihn
11301 Carmel Commons
Blvd.
Suite 304
Charlotte, NC 28226
Tel [phone]
Fax [phone]
Subject: Authorization to Construct No. 036269A02 -'Engineer's Certification
Water and Sewer Authority of Cabarrus County (WSACC)
Rocky River Regional Wastewater Treatment Plant
Imported Biosolids Handling Facility Project
Dear Mr. Robertson:
Enclosed is the final Engineer's Certification for the construction of the WSACC Imported
Biosolids Handling Facility Project. As explained in the attached 8/15/11 letter to you,
WSACC elected not to install certain non -essential project features as a result of value
engineering efforts. Ken Pohlig acknowledged receipt of the subject letter in the attached
8/19/11 email.
As suggested in the referenced email, project features not installed are indicated on the
enclosed complete Engineer's Certification form by crossing out those items in the project
description. Division of Water Quality March 21, 2011 Authorization to Construct (ATC)
letter is attached for your reference.
Should you have any questions, or need any additional information, please contact me at
704-543-3278.
Sincerely,
CH2M HILL
(je-O—
Ange a F. Roberts, P.E.
Project Manager
cc:
Tonisha Dawson, Mooresville Regional Office/NC DENR DAQ
Coleman M. Keeter, WSACC
Tim Kiser, WSACC
.Chad VonCannon, WSACC
Jennifer Be11/CH2M HILL
File

Water and Sewer Authority of Cabarrus County
A To C No. 036269A02.
Rocky River Wastewater Treatment Plant
imported Biosolids Handling Facility
Issued March 21, 2011.
Engineer's Certification
RE�VED
MAY 0 6 2013
cture Pura Sc
I, AEI 6-L A F P. of ER Ts, as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically weekl full time)
the construction of the modifications and improvements to the Rocky River WWTP, located on
6400 Breezy Lane Off NCSR 2343 in Cabarrus County, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:
Installation of covered sludge receiving station consisting of two (2) biosolids receiving
bins with 2,590 cubic feet working volume each, two (2) extraction screw conveyors at
10,500 wet pounds/hour capacity each, one (1) sludge mixer with maximum retention time
of 1 minute, and twe-(2 5 m-rlewaterect Sludge pumps., and ene-(1)-dewaterecl e
bunker =pith a vnhzm? of 6.11acubi eet one (1) 3,000 cfm biotower for odor control, and-a-
ozwzred-60Lx o ' paUme gency-sled storage• -area, in conformity with the
project plans, specifications, and other supporting data subsequently filed and approved by
the Department of Environment and Natural Resources.
Signature
Avyfreet_
Date 5 1. 3 12.00
Send to:
Registration No. G 3 J 9 9
Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633
r
995 •

Roberts, Angela/CLT
From: Pohlig, Ken [[e-mail]]
Sent: Friday, August 19, 2011 1:33 PM
To: Hahn, Thomas/CLT
Cc: Roberts, Angela/CLT; Robertson, Seth
Subject: RE: Authorization to Construct No. 036269A02 - WSACC Rocky River Regional WWTP
Imported Biosolids Handling Facility Project
To: Thomas Hahn, CH2MHi11
Cc: Angela Roberts, CH2MHill
Seth Robertson, my boss, asked me to reply to your e-mail. Yes, we received your letter on August 18, 2011.
In general, there is no problem signing a Partial Engineer Certification for work completed.
We do request that you use the original Engineer Certification we would have supplied with the issued
Authorization to Construct, and simply cross through those items not installed. An attached explanation of
why certain items were not installed would be helpful to us and the Mooresville Regional Office.
We would also appreciate being provided a schedule of when these items will be installed.
If the intention is never to install them, or possibly install them in the far future with changes likely, then
we recommend that you pose the Engineer Certification as a "Final" certification. The future work should
be planned for a future ATC application.
Please let me know if you have any more questions.
Ken Pohlig, P.E.
Construction Grants & Loans Section
[phone]
From: Robertson, Seth
Sent: Thursday, August 18, 2011 5:17 PM
To: Pohlig, Ken
Subject: FW: Authorization to Construct No. 036269A02 - WSACC Rocky River Regional WWTP Imported Biosolids
Handling Facility Project
From: Thomas. [e-mail] fmailto:[e-mail]]
Sent: Thursday, August 18, 2011 4:21 PM
To: Robertson, Seth
Cc: [e-mail]
Subject: Authorization to Construct No. 036269A02 - WSACC Rocky River Regional WWTP Imported Biosolids Handling
Facility Project
Seth,
Following up on a phone call to you from Bill Kreutzberger, Angela Roberts from our office submitted an email and letter
to you describing delays in installation of certain features on the referenced project. As requested in your conversation
with Bill, we submitted the letter requesting your acknowledgement and acceptance of the changes to the project,
including the delayed installation of the individual project features identified in the letter. Additionally, per your
1

conversation with Bill, we plan to include your response to our letter as supporting documentation with the submittal of
the required "Engineer's Certification" following the completion of the project. I'm sending this email to confirm that
you received the email and letter from Angela, and to see if you have any questions regarding our request within the
letter. As always, we appreciate your help!
Thank you,
Thomas Hahn, El
Staff Engineer
Water Business Group
CH2Rfi HILL
11301 Carmel Commons Blvd, Suite 304
Charlotte, NC 28226
Direct 704.543.3267
Fax [phone]
www.ch2mhill.com
2

CH2MH ILL
August.15, 2011
Mr. Seth Robertson
Supervisor, Design Management Unit
Construction. Grants and Loans Section
1633 Mail Service Center
Raleigh, NC. 27699 :1633
Subject:
Authorization to Construct No. 036269A02
Water* and Sewer Authority of Cabarrus Comity (WSACC)
Rocky River Regional Wastewater Treatment. Plant
Imported Biosolids Handling Facility Project.
CH2M HILL
11301 Cannel Commons
Blvd.
Suite 304
Charlotte, NC 28226
Tel [phone]
Fax [phone]
Dear Mr. Robertson:
As discussed with Bill:Kreutzberger from our office, the Water and Sewer Authority.of
Cabarrus County (WSACC) has elected to delay installation of .certain -non -essential project
:features on the referenced project as a result of value engineering efforts. Theoriginal
description: provided on the Authorization to Coristruct(ATC) issued froth CG&L to
WSACC is includedbelow for reference. Bolded portions of the description indicate project
features with delayed installation, as described further below:
"Installation of covered sludge receiving station consisting of two (2) biosolids
receiving bins with 2,590 cubic feet working volume each, two (2) extraction
screw conveyors at 10,500 wet pounds/hour capacity each, one (1) sludge mixer
with maximum retention time of 1 minute, and two (2) 45 gpm dewatered
sludge pumps, and one (1) dewatered sludge bunker with a volume .of 610.
cubic feet, one (1) 3;000 cfm biotower for odor control, and a.covered 60' x 75°
concrete -pad emergency sludge storage area, in conformity with the project
plans, specifications, and othersupporting data subsequently filed and approved
by the Department of Environment and Natural Resources."
Only one dewatered sludge pump will be installed with the project at this point, as
adequate sludge conveyance capacity is available with the combination of one new
dewatered sludge pump and the two existing dewatered sludge pumps. Installation of
the dewatered sludge bunker is also delayed, as the two existing dewatered sludge
bunkers have sufficient capacity for storage and conveyance of the design sludge flow
rates. Finally, installation of the covered 60' x 75' concrete -pad emergency sludge
storage area •is delayed, as the proposed solids receiving bins and existing dewatered
sludge bunkers will provide sufficient storage capacity for the design imported sludge
quantities. Neither function, storage capacity, nor throughput capacity of the new
facility will be adversely affected by the .delayed installation of these project features, as
sufficient capacity is available through other proposed and existing equipment for

providing the design sludge cake storage and feed rate to the existing multiple hearth
furnace.
On behalf of WSACC, CH2M HILL is submitting this letter requesting your
acknowledgement and acceptance of the changes to the project, including the delayed
installation of the project features identified above : CH2M HILL will include your
response as supporting documentation with the submittal of the required "Engineer's
Certificafion"IfollowirLg the completion of the project
Should you have any questions, or need any additional information, please contact me at
704:543-3278.
Sincerely,
CH2M,IiILL
r
Anpja F. Roberts,
Project Ivlanager
c: Colernan.M., Keeter, WSACC
Evander H. Rowell, WSACC
Chad VonCannon, WSACC
File

•
ATAems
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
March 21, 2011
Mr. Chad VonCannon, P.E.
Water and .Sewer Authority of Cabarrus County
232 Davidson Highway
Concord, North Carolina 28027
SUBJECT: Authorization to Construct No. 036269A02
Water and Sewer Authority of Cabarrus County
Rocky River Wastewater Treatment Plant
Imported Biosolids HandlingFacility
Cabarrus :County
Dear Mr. VonCannon:.
A letter of requestfor an Authorization to Construct was received March 15, 2011, by the
Division' of Water Quality (Division), and final plans and specifications for the subject project
have been reviewed and found to be satisfactory. Authorization is hereby granted for the
construction of modifications to the existing .24.0 MGD Rocky River Wastewater Treatment
Plant, with discharge of treated wastewater into the Rocky River in the Yadkin — Pee Dee River
Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Installation of covered sludge receivingstation consisting of two (2) biosolids receiving
bins with 2,590 cubic feet working volume each, two (2) extraction screw conveyors at
10,500 wet pounds/hour capacity each, one (1) sludge mixer with maximum retention time
of 1 minute, and two (2) 45 gpm dewatered sludge pumps, and one (1) dewatered sludge
bunker with a volume of 610 cubic feet, one (1) 3,000 cfm biotower for odor control, and a
covered 60' x 75' concrete -pad emergency sludge storage area, in conformity with the
project plans, specifications, and other supporting data subsequently filed and approved by
the Department of Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part ill, Paragraph A of
NPDES Permit No. NC0036269 issued October 13, 2008, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0036269.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St.Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1877-623.6748
Internet: www.ncwaterquality.org
An Equal opporiunilyl Aimsalive Action Employer
NorthCaroltna
Naturally

Mr. Chad VonCannon, P.E.
March 21, 2011
Page 2
The sludge generated from these treatment facilities must be. disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to performsatisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.,
The Mooresville' Regional Office, telephone number [phone], shall be notified at
least.forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can bemade. Such notification to the regional supervisor shall be made .during the
normal .office hours from 8:00 a.m. until 5:'00 pm. on. Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved -plans and specifications. • Mail the Certification to: Construction Grants & Loans,
DWQ/DENR,1633Mail Service Center, Raleigh, NC 27699-1633..
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The, operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
'The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of TI5A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.

Mr. Chad VonCannon, P.E.
March 21, 2011
Page 3
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina. General Statute 143-215.6A to I43-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
kp:sr
Sincerely.
ejo 7a/tcz)
Coleen H. Sullins
(//7
cc: Angela F. Roberts, P.E., CH2M Hill, 11301 Carmel Commons Blvd., Suite 304,
Charlotte, NC 28226
Cabarrus County Health Department
DWQ Mooresville Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File